Creating cartoon animations
Given that this is a site dedicated to Blender 3D, I suspect that the questions is "Are these kinds of animations doable in blender?"

If so, the answer is yes. 

You might want to do a google search for tutorials on "Non Photorealistic Rendering in Blender" (Or "NPR rendering") and "Blender Freestyle"


Tire Bike by Pro Creaciones. CC BY


  Freestyle is an edge- and line-based non-photorealistic (NPR) rendering engine. It relies on mesh data and z-depth information to draw lines on selected edge types. Various line styles can be added to produce artistic (“hand drawn”, “painted”, etc.) or technical (hard line) looks.


Here are some links that illustrate some of the possible uses for freesyle:

https://wiki.blender.org/index.php/Dev:Ref/Release_Notes/2.67/FreeStyle#Freestyle_Artwork_Showcase

To get started Read this link to the blender manual